The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2014
Filed:
Sep. 14, 2012
Patrick R. Fischer-carne, New Smyrna Beach, FL (US);
Robert S. Karnbach, Lake Mary, FL (US);
Rahul Pawar, Lake Mary, FL (US);
Patrick R. Fischer-Carne, New Smyrna Beach, FL (US);
Robert S. Karnbach, Lake Mary, FL (US);
Rahul Pawar, Lake Mary, FL (US);
ABB Technology AG, Zürich, CH;
Abstract
A truck (') for mounting a circuit breaker () in a switchgear frame (′) includes wheels (), a racking screw (), a nut () threaded with the racking screw. The nut floats linearly with respect to the truck. A spring () is provided between a portion of the truck and the nut such that during movement of the truck into the frame, rotation of the racking screw causes linear movement of the nut, with the nut pushing against the spring, with the spring pushing the truck to move the truck linearly. Locking structure is coupled with the such that when the truck is stopped and the racking screw continues to rotate, the nut will move to compress the spring, causing the locking structure to move from an unlocked position, disengaged with the frame, to a locked position, engaged with the frame.